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Product Detailed Parameters
- Description：IC REG LINEAR 1.8V 300MA 5-TSOP
- Series：-
- Mfr：NXP USA Inc.
- Package：Tape & Reel (TR)
- Output Configuration：Positive
- Output Type：Fixed
- Number of Regulators：1
- Voltage - Input (Max)：5.5V
- Voltage - Output (Min/Fixed)：1.8V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：0.2V @ 300mA
- Current - Output：300mA
- Current - Quiescent (Iq)：100 µA
- Current - Supply (Max)：250 µA
- PSRR：55dB (1kHz)
- Control Features：Enable
- Protection Features：Over Current, Over Temperature
- Operating Temperature：-40°C ~ 85°C
- Mounting Type：Surface Mount
- Package / Case：SC-74A, SOT-753
- Supplier Device Package：5-TSOP
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Overview
The LD6836TD/18P,125 is a fixed-output Low Dropout regulator (LDO) manufactured by NXP Semiconductors. It provides a nominal output voltage of 1.8 V with a maximum output current rating of 300 mA. The device operates within an input voltage range of 2.3 V to 5.5 V and features a typical dropout voltage of 90 mV at full load. It incorporates an integrated pull-down switching transistor for auto discharge functionality when disabled. The component is housed in a small SOT753 surface-mounted plastic package.
Feature Summary
- Integrated pull-down switching transistor ensures a low-ohmic output state during shutdown for rapid discharge
- Ultra-low dropout performance maintains regulation with minimal input-to-output voltage difference
- Low quiescent current consumption in shutdown mode minimizes power drain in portable applications
- Built-in over-temperature protection and output current limiting safeguard against fault conditions
Applications
- Analog and digital interfaces requiring lower supply voltages in mobile appliances
- Smartphones and mobile phone handsets
- Cordless telephones
- Digital still cameras
- Portable media players
Procurement Notes
Verify the specific suffix '125' against official manufacturer documentation to confirm tape-and-reel packaging specifications or lot traceability details not explicitly detailed in the general datasheet. Ensure the ordering code matches the required 1.8 V fixed output and SOT753 package variant. Confirm RoHS compliance status as per the latest product data sheet revision.
Selection Notes
Select this component when a compact LDO with active output discharge is required for battery-powered systems. The SOT753 package suits space-constrained designs compared to WLCSP options. Verify that the 1.8 V fixed output aligns with the target circuit requirements, as variable voltage versions utilize different suffix codes. Ensure input voltage remains within the 2.3 V to 5.5 V operational window.
Part Context
This part belongs to the LD6836 series of ultra-low dropout regulators designed for miniaturization in portable electronics. The series includes variants in both WLCSP4 and SOT753 packages. The 'TD' designation identifies the SOT753 plastic surface-mount package, while the '/18P' suffix specifies the 1.8 V output voltage and the pull-down (auto discharge) output configuration.
Replacement Considerations
Compatible substitutes include other LD6836 series parts with matching output voltage and package type, such as LD6836TD/18H for high-ohmic output instead of pull-down. Cross-reference pinouts and thermal characteristics when replacing with non-NXP LDOs to ensure functional equivalence.
